<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>浮动</title>
		<link href="css/boxstyle.css"rel="stylesheet" />
	</head>
	<body>
		<!-- 快速创建类名为box的盒子：标签名。box*个数，tab -->
		<div class="bigbox clearfix" >
			<div class="box">box1</div>
		<div class="box" style="height: 180px;">box2</div>
		<div class="box" style="height: 230px;">box3</div>
		
	</div>
	</body>
</html>
